Finding the Fourth Proportional to 39,871,826.32, 55,023,111.84 and 21,537,112

Step by Step Solution

1. Step 1: Write the proportion equation
   39,871,826.32 : 55,023,111.84 = 21,537,112 : x
2. Step 2: Convert to fraction form
   39,871,826.32/55,023,111.84 = 21,537,112/x
3. Step 3: Cross multiply
   39,871,826.32x = 55,023,111.84 × 21,537,112
4. Step 4: Simplify right side
   39,871,826.32x = 1,185,038,922,286,606.25
5. Step 5: Solve for x
   x = 1,185,038,922,286,606.25/39,871,826.32
6. Step 6: Final answer
   x = 29,721,209.98