Finding the Fourth Proportional to 77,025.69, 106,531.71 and 69,065.01

Step by Step Solution

1. Step 1: Write the proportion equation
   77,025.69 : 106,531.71 = 69,065.01 : x
2. Step 2: Convert to fraction form
   77,025.69/106,531.71 = 69,065.01/x
3. Step 3: Cross multiply
   77,025.69x = 106,531.71 × 69,065.01
4. Step 4: Simplify right side
   77,025.69x = 7,357,613,616.47
5. Step 5: Solve for x
   x = 7,357,613,616.47/77,025.69
6. Step 6: Final answer
   x = 95,521.55