Finding the Fourth Proportional to 102,008.15, 140,770.71 and 56,068.85

Step by Step Solution

1. Step 1: Write the proportion equation
   102,008.15 : 140,770.71 = 56,068.85 : x
2. Step 2: Convert to fraction form
   102,008.15/140,770.71 = 56,068.85/x
3. Step 3: Cross multiply
   102,008.15x = 140,770.71 × 56,068.85
4. Step 4: Simplify right side
   102,008.15x = 7,892,851,823.38
5. Step 5: Solve for x
   x = 7,892,851,823.38/102,008.15
6. Step 6: Final answer
   x = 77,374.72