Finding the Fourth Proportional to 91,945,213.08, 137,951,449.95 and 42,784,512.53

Step by Step Solution

1. Step 1: Write the proportion equation
   91,945,213.08 : 137,951,449.95 = 42,784,512.53 : x
2. Step 2: Convert to fraction form
   91,945,213.08/137,951,449.95 = 42,784,512.53/x
3. Step 3: Cross multiply
   91,945,213.08x = 137,951,449.95 × 42,784,512.53
4. Step 4: Simplify right side
   91,945,213.08x = 5,902,185,538,917,443
5. Step 5: Solve for x
   x = 5,902,185,538,917,443/91,945,213.08
6. Step 6: Final answer
   x = 64,192,417.87