Finding the Fourth Proportional to 35,404,928.77, 48,845,841.27 and 21,456,221.20

Step by Step Solution

1. Step 1: Write the proportion equation
   35,404,928.77 : 48,845,841.27 = 21,456,221.20 : x
2. Step 2: Convert to fraction form
   35,404,928.77/48,845,841.27 = 21,456,221.20/x
3. Step 3: Cross multiply
   35,404,928.77x = 48,845,841.27 × 21,456,221.20
4. Step 4: Simplify right side
   35,404,928.77x = 1,048,047,174,989,209
5. Step 5: Solve for x
   x = 1,048,047,174,989,209/35,404,928.77
6. Step 6: Final answer
   x = 29,601,730.93