Finding the Fourth Proportional to 139,501.13, 209,278.64 and 59,537.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,501.13 : 209,278.64 = 59,537.93 : x
2. Step 2: Convert to fraction form
   139,501.13/209,278.64 = 59,537.93/x
3. Step 3: Cross multiply
   139,501.13x = 209,278.64 × 59,537.93
4. Step 4: Simplify right side
   139,501.13x = 12,460,017,018.82
5. Step 5: Solve for x
   x = 12,460,017,018.82/139,501.13
6. Step 6: Final answer
   x = 89,318.39