Finding the Fourth Proportional to 61,238,837.70, 91,732,285.35 and 42,091,215.30

Step by Step Solution

1. Step 1: Write the proportion equation
   61,238,837.70 : 91,732,285.35 = 42,091,215.30 : x
2. Step 2: Convert to fraction form
   61,238,837.70/91,732,285.35 = 42,091,215.30/x
3. Step 3: Cross multiply
   61,238,837.70x = 91,732,285.35 × 42,091,215.30
4. Step 4: Simplify right side
   61,238,837.70x = 3,861,123,372,627,885.50
5. Step 5: Solve for x
   x = 3,861,123,372,627,885.50/61,238,837.70
6. Step 6: Final answer
   x = 63,050,239.32