Finding the Fourth Proportional to 42,050,521.40, 63,063,972.30 and 13,305,468.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,050,521.40 : 63,063,972.30 = 13,305,468.20 : x
2. Step 2: Convert to fraction form
   42,050,521.40/63,063,972.30 = 13,305,468.20/x
3. Step 3: Cross multiply
   42,050,521.40x = 63,063,972.30 × 13,305,468.20
4. Step 4: Simplify right side
   42,050,521.40x = 839,095,678,003,330.75
5. Step 5: Solve for x
   x = 839,095,678,003,330.75/42,050,521.40
6. Step 6: Final answer
   x = 19,954,465.49