Finding the Fourth Proportional to 88,029,148.80, 131,931,748.80 and 42,492,892.80

Step by Step Solution

1. Step 1: Write the proportion equation
   88,029,148.80 : 131,931,748.80 = 42,492,892.80 : x
2. Step 2: Convert to fraction form
   88,029,148.80/131,931,748.80 = 42,492,892.80/x
3. Step 3: Cross multiply
   88,029,148.80x = 131,931,748.80 × 42,492,892.80
4. Step 4: Simplify right side
   88,029,148.80x = 5,606,161,658,674,928
5. Step 5: Solve for x
   x = 5,606,161,658,674,928/88,029,148.80
6. Step 6: Final answer
   x = 63,685,287.60