Finding the Fourth Proportional to 112,908.52, 155,811.42 and 69,876.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,908.52 : 155,811.42 = 69,876.56 : x
2. Step 2: Convert to fraction form
   112,908.52/155,811.42 = 69,876.56/x
3. Step 3: Cross multiply
   112,908.52x = 155,811.42 × 69,876.56
4. Step 4: Simplify right side
   112,908.52x = 10,887,566,038.32
5. Step 5: Solve for x
   x = 10,887,566,038.32/112,908.52
6. Step 6: Final answer
   x = 96,428.21