Finding the Fourth Proportional to 39,861,813.42, 55,009,300.71 and 21,527,097.30

Step by Step Solution

1. Step 1: Write the proportion equation
   39,861,813.42 : 55,009,300.71 = 21,527,097.30 : x
2. Step 2: Convert to fraction form
   39,861,813.42/55,009,300.71 = 21,527,097.30/x
3. Step 3: Cross multiply
   39,861,813.42x = 55,009,300.71 × 21,527,097.30
4. Step 4: Simplify right side
   39,861,813.42x = 1,184,190,568,789,129.25
5. Step 5: Solve for x
   x = 1,184,190,568,789,129.25/39,861,813.42
6. Step 6: Final answer
   x = 29,707,393.30