Finding the Fourth Proportional to 113,820.16, 157,080.72 and 63,526.72

Step by Step Solution

1. Step 1: Write the proportion equation
   113,820.16 : 157,080.72 = 63,526.72 : x
2. Step 2: Convert to fraction form
   113,820.16/157,080.72 = 63,526.72/x
3. Step 3: Cross multiply
   113,820.16x = 157,080.72 × 63,526.72
4. Step 4: Simplify right side
   113,820.16x = 9,978,822,916.84
5. Step 5: Solve for x
   x = 9,978,822,916.84/113,820.16
6. Step 6: Final answer
   x = 87,671.84