Finding the Fourth Proportional to 112,340.06, 155,092.56 and 77,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,340.06 : 155,092.56 = 77,934.50 : x
2. Step 2: Convert to fraction form
   112,340.06/155,092.56 = 77,934.50/x
3. Step 3: Cross multiply
   112,340.06x = 155,092.56 × 77,934.50
4. Step 4: Simplify right side
   112,340.06x = 12,087,061,117.32
5. Step 5: Solve for x
   x = 12,087,061,117.32/112,340.06
6. Step 6: Final answer
   x = 107,593.51