Finding the Fourth Proportional to 91,945,216.08, 137,951,454.45 and 42,784,515.54

Step by Step Solution

1. Step 1: Write the proportion equation
   91,945,216.08 : 137,951,454.45 = 42,784,515.54 : x
2. Step 2: Convert to fraction form
   91,945,216.08/137,951,454.45 = 42,784,515.54/x
3. Step 3: Cross multiply
   91,945,216.08x = 137,951,454.45 × 42,784,515.54
4. Step 4: Simplify right side
   91,945,216.08x = 5,902,186,146,681,627
5. Step 5: Solve for x
   x = 5,902,186,146,681,627/91,945,216.08
6. Step 6: Final answer
   x = 64,192,422.38