Finding the Fourth Proportional to 99,298.71, 148,947.93 and 43,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,298.71 : 148,947.93 = 43,131.69 : x
2. Step 2: Convert to fraction form
   99,298.71/148,947.93 = 43,131.69/x
3. Step 3: Cross multiply
   99,298.71x = 148,947.93 × 43,131.69
4. Step 4: Simplify right side
   99,298.71x = 6,424,375,942.90
5. Step 5: Solve for x
   x = 6,424,375,942.90/99,298.71
6. Step 6: Final answer
   x = 64,697.48