Finding the Fourth Proportional to 90,635,474.06, 135,953,087.94 and 42,086,780.42

Step by Step Solution

1. Step 1: Write the proportion equation
   90,635,474.06 : 135,953,087.94 = 42,086,780.42 : x
2. Step 2: Convert to fraction form
   90,635,474.06/135,953,087.94 = 42,086,780.42/x
3. Step 3: Cross multiply
   90,635,474.06x = 135,953,087.94 × 42,086,780.42
4. Step 4: Simplify right side
   90,635,474.06x = 5,721,827,759,551,730
5. Step 5: Solve for x
   x = 5,721,827,759,551,730/90,635,474.06
6. Step 6: Final answer
   x = 63,130,113.45