Finding the Fourth Proportional to 99,098.05, 148,669.79 and 42,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,098.05 : 148,669.79 = 42,947.59 : x
2. Step 2: Convert to fraction form
   99,098.05/148,669.79 = 42,947.59/x
3. Step 3: Cross multiply
   99,098.05x = 148,669.79 × 42,947.59
4. Step 4: Simplify right side
   99,098.05x = 6,385,009,186.31
5. Step 5: Solve for x
   x = 6,385,009,186.31/99,098.05
6. Step 6: Final answer
   x = 64,431.23