Finding the Fourth Proportional to 106,510.86, 147,606.35 and 105,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   106,510.86 : 147,606.35 = 105,007.50 : x
2. Step 2: Convert to fraction form
   106,510.86/147,606.35 = 105,007.50/x
3. Step 3: Cross multiply
   106,510.86x = 147,606.35 × 105,007.50
4. Step 4: Simplify right side
   106,510.86x = 15,499,773,272.59
5. Step 5: Solve for x
   x = 15,499,773,272.59/106,510.86
6. Step 6: Final answer
   x = 145,522.94