Finding the Fourth Proportional to 433,687,724.56, 650,287,123.86 and 142,476,656.98

Step by Step Solution

1. Step 1: Write the proportion equation
   433,687,724.56 : 650,287,123.86 = 142,476,656.98 : x
2. Step 2: Convert to fraction form
   433,687,724.56/650,287,123.86 = 142,476,656.98/x
3. Step 3: Cross multiply
   433,687,724.56x = 650,287,123.86 × 142,476,656.98
4. Step 4: Simplify right side
   433,687,724.56x = 92,650,735,484,711,984
5. Step 5: Solve for x
   x = 92,650,735,484,711,984/433,687,724.56
6. Step 6: Final answer
   x = 213,634,673.61