Finding the Fourth Proportional to 39,899,802.09, 55,061,702 and 21,565,087.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,899,802.09 : 55,061,702 = 21,565,087.59 : x
2. Step 2: Convert to fraction form
   39,899,802.09/55,061,702 = 21,565,087.59/x
3. Step 3: Cross multiply
   39,899,802.09x = 55,061,702 × 21,565,087.59
4. Step 4: Simplify right side
   39,899,802.09x = 1,187,410,426,484,478.25
5. Step 5: Solve for x
   x = 1,187,410,426,484,478.25/39,899,802.09
6. Step 6: Final answer
   x = 29,759,807.42