Finding the Fourth Proportional to 99,034.79, 136,667.60 and 53,712.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,034.79 : 136,667.60 = 53,712.59 : x
2. Step 2: Convert to fraction form
   99,034.79/136,667.60 = 53,712.59/x
3. Step 3: Cross multiply
   99,034.79x = 136,667.60 × 53,712.59
4. Step 4: Simplify right side
   99,034.79x = 7,340,769,813.18
5. Step 5: Solve for x
   x = 7,340,769,813.18/99,034.79
6. Step 6: Final answer
   x = 74,123.15