Finding the Fourth Proportional to 102,363.72, 141,256.10 and 56,414.24

Step by Step Solution

1. Step 1: Write the proportion equation
   102,363.72 : 141,256.10 = 56,414.24 : x
2. Step 2: Convert to fraction form
   102,363.72/141,256.10 = 56,414.24/x
3. Step 3: Cross multiply
   102,363.72x = 141,256.10 × 56,414.24
4. Step 4: Simplify right side
   102,363.72x = 7,968,854,538.51
5. Step 5: Solve for x
   x = 7,968,854,538.51/102,363.72
6. Step 6: Final answer
   x = 77,848.43