Finding the Fourth Proportional to 42,194,643.39, 63,301,510.13 and 13,442,416.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,194,643.39 : 63,301,510.13 = 13,442,416.83 : x
2. Step 2: Convert to fraction form
   42,194,643.39/63,301,510.13 = 13,442,416.83/x
3. Step 3: Cross multiply
   42,194,643.39x = 63,301,510.13 × 13,442,416.83
4. Step 4: Simplify right side
   42,194,643.39x = 850,925,285,068,715.38
5. Step 5: Solve for x
   x = 850,925,285,068,715.38/42,194,643.39
6. Step 6: Final answer
   x = 20,166,666.11