Finding the Fourth Proportional to 112,999.86, 155,929.15 and 67,677.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,999.86 : 155,929.15 = 67,677.02 : x
2. Step 2: Convert to fraction form
   112,999.86/155,929.15 = 67,677.02/x
3. Step 3: Cross multiply
   112,999.86x = 155,929.15 × 67,677.02
4. Step 4: Simplify right side
   112,999.86x = 10,552,820,092.82
5. Step 5: Solve for x
   x = 10,552,820,092.82/112,999.86
6. Step 6: Final answer
   x = 93,387.90