Finding the Fourth Proportional to 546,949,250.75, 820,425,978.69 and 132,425,381.31

Step by Step Solution

1. Step 1: Write the proportion equation
   546,949,250.75 : 820,425,978.69 = 132,425,381.31 : x
2. Step 2: Convert to fraction form
   546,949,250.75/820,425,978.69 = 132,425,381.31/x
3. Step 3: Cross multiply
   546,949,250.75x = 820,425,978.69 × 132,425,381.31
4. Step 4: Simplify right side
   546,949,250.75x = 108,645,223,064,653,200
5. Step 5: Solve for x
   x = 108,645,223,064,653,200/546,949,250.75
6. Step 6: Final answer
   x = 198,638,581.03