Finding the Fourth Proportional to 107,695.31, 148,665.47 and 76,670.55

Step by Step Solution

1. Step 1: Write the proportion equation
   107,695.31 : 148,665.47 = 76,670.55 : x
2. Step 2: Convert to fraction form
   107,695.31/148,665.47 = 76,670.55/x
3. Step 3: Cross multiply
   107,695.31x = 148,665.47 × 76,670.55
4. Step 4: Simplify right side
   107,695.31x = 11,398,262,967.56
5. Step 5: Solve for x
   x = 11,398,262,967.56/107,695.31
6. Step 6: Final answer
   x = 105,838.07