Finding the Fourth Proportional to 120,225,422.58, 180,454,749.42 and 58,020,513.15

Step by Step Solution

1. Step 1: Write the proportion equation
   120,225,422.58 : 180,454,749.42 = 58,020,513.15 : x
2. Step 2: Convert to fraction form
   120,225,422.58/180,454,749.42 = 58,020,513.15/x
3. Step 3: Cross multiply
   120,225,422.58x = 180,454,749.42 × 58,020,513.15
4. Step 4: Simplify right side
   120,225,422.58x = 10,470,077,161,703,064
5. Step 5: Solve for x
   x = 10,470,077,161,703,064/120,225,422.58
6. Step 6: Final answer
   x = 87,087,048.12